1/2" i.d. x 12-foot long flexible hose with quick disconnect fittings. 160,000 BTU/hour gas flow capacity on Natural Gas. Why do you need this hose? 3/8" hoses found at home improvement stores and BBQ shops have a maximum capacity of 60,000 BTU/hour, which is right at the maximum flow of two Solaire burners on HIGH (55,000 BTU/hour). If you have a side burner on your 30" Solaire, a 42" or 56" Solaire, you need the gas flow capacity this hose delivers for proper operation on natural gas. Works well on 27" grills also.